Hello, I am the one who uploaded the Vorobyov symphony on YouTube. Thank you for correcting my spelling of the conductor's name, I have corrected it now in the video as well. Hopefully I can help you with some information. Since Chuvashia has not produced many composers, Vorobyov is well remembered there, as you can see on this site:
http://kapella21.ru/diskografiya/126-gennadij-vorobev-neperekhodyashchie-tsennosti-iskusstva where you can even hear some other works by him and a more recent performance of the symphony.
Here is my translation of a text I found on the site
http://gov.cap.ru/hierarhy.asp?page=./1/13313/34350 :
August 13 marks the 85th anniversary of the birth of one of the most gifted of a new generation of Chuvash composers that came up in the late 30’s, Gennady Vasilyevich Vorobyov (1918-1939). He lived a very short life, but his works were so great that the best of them entered the golden fund of Chuvash music.
Gennady Vorobyov was born in 1918 in Cheboksary, Chuvashia, in the family of the composer and choral conductor Vasily Petrovich Vorobyov, one of the founders of the Chuvash professional music.
Since childhood, Gennady Vorobyov’s craving for music was so obvious that he began his studies at a music school, and only then in general education.
The first piano compositions by G. Vorobyov – “Carousel” and “Children’s Suite” (1934-1935) – were written during his studies at the music college of Cheboksary. After brilliantly finishing college, Gennady Vorobyev entered the Moscow Conservatory. On September 15, 1935 in the newspaper “Krasnaya Chuvashia” a TASS report was published “17-year-old composer,” which quoted the head of composition department of the Moscow Conservatory, Professor G. Litinsky: “Vorobyov made a strong impression on the members of the commission at his talent test. In Vorobyov, Chuvashia has a very valuable creative musical force.” It is in the class of Professor G. I. Litinsky that Gennady Vorobyov honed his technique to the level of professionalism, contributing to the solution of large creative tasks. Already in the first two years he wrote a Sonatina for piano, a Sonata for violin and piano, about a dozen treatments of Chuvash folk songs, including the famous “Amartkayak” (“Eagle”) songs on poems by A. S. Pushkin, translated into Chuvash language, and some choral songs.
The creative activities of Gennady Vasilyevich Vorobyov lasted only for six years. But during this time he wrote about 70 works: instrumental chamber and orchestral works, choral songs and ballads, arrangements of Chuvash folk songs. The biggest piece, his four-movement symphony, can be conted among the best creations of Chuvash music ever.
The works of G. Vorobyov were at the same time published in Moscow and Cheboksary. But they have become a rarity. In the state archives of the Chuvash Republic Vorobyov’s printed works are carefully kept. Among them: “Five Chuvash folk songs” (1939), “Holiday on the farm” (1946), “Juras” (Song) (1947), “Pieces for piano” (1969), etc.
On the brief but extremely bright and intense creative searchings and findings in the life of the talented composer Gennady Vorobyov, its wonderful, genuine poetry, expressed in a variety of genres and forms, you can get information in the book by the well-known composer from the Chuvash ASSR and RSFSR, Viktor Alexandrovich Hodyashev, “Gennady Vorobyov: A brief sketch of the life and work,” published by the Chuvash Publishing House in 1968.
